* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel, Inc.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LOG
-#ifndef __KERNEL__
-#include <liblustre.h>
-#endif
#include <obd_class.h>
struct llog_handle *loghandle,
struct thandle *th)
{
+ struct llog_thread_info *lgi = llog_info(env);
+ struct llog_logid_rec *rec = &lgi->lgi_logid;
+ int rc;
- struct llog_log_hdr *llh;
- struct llog_logid_rec rec = { { 0 }, };
- int rc, index, bitmap_size;
- ENTRY;
-
- llh = cathandle->lgh_hdr;
- bitmap_size = LLOG_BITMAP_SIZE(llh);
-
- index = (cathandle->lgh_last_idx + 1) % bitmap_size;
-
- /* maximum number of available slots in catlog is bitmap_size - 2 */
- if (llh->llh_cat_idx == index) {
- CERROR("no free catalog slots for log...\n");
- RETURN(-ENOSPC);
- }
+ ENTRY;
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
RETURN(-ENOSPC);
}
rc = llog_init_handle(env, loghandle,
- LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
- &cathandle->lgh_hdr->llh_tgtuuid);
- if (rc)
- GOTO(out_destroy, rc);
-
- if (index == 0)
- index = 1;
-
- cfs_spin_lock(&loghandle->lgh_hdr_lock);
- llh->llh_count++;
- if (ext2_set_bit(index, llh->llh_bitmap)) {
- CERROR("argh, index %u already set in log bitmap?\n",
- index);
- cfs_spin_unlock(&loghandle->lgh_hdr_lock);
- LBUG(); /* should never happen */
- }
- cfs_spin_unlock(&loghandle->lgh_hdr_lock);
-
- cathandle->lgh_last_idx = index;
- llh->llh_tail.lrt_index = index;
-
- CDEBUG(D_RPCTRACE,"new recovery log "LPX64":%x for index %u of catalog "
- LPX64"\n", loghandle->lgh_id.lgl_oid, loghandle->lgh_id.lgl_ogen,
- index, cathandle->lgh_id.lgl_oid);
- /* build the record for this log in the catalog */
- rec.lid_hdr.lrh_len = sizeof(rec);
- rec.lid_hdr.lrh_index = index;
- rec.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
- rec.lid_id = loghandle->lgh_id;
- rec.lid_tail.lrt_len = sizeof(rec);
- rec.lid_tail.lrt_index = index;
-
- /* update the catalog: header and record */
- rc = llog_write_rec(env, cathandle, &rec.lid_hdr,
- &loghandle->u.phd.phd_cookie, 1, NULL, index, th);
+ LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
+ &cathandle->lgh_hdr->llh_tgtuuid);
+ if (rc)
+ GOTO(out_destroy, rc);
+
+ /* build the record for this log in the catalog */
+ rec->lid_hdr.lrh_len = sizeof(*rec);
+ rec->lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
+ rec->lid_id = loghandle->lgh_id;
+
+ /* append the new record into catalog. The new index will be
+ * assigned to the record and updated in rec header */
+ rc = llog_write_rec(env, cathandle, &rec->lid_hdr,
+ &loghandle->u.phd.phd_cookie, LLOG_NEXT_IDX, th);
if (rc < 0)
GOTO(out_destroy, rc);
- loghandle->lgh_hdr->llh_cat_idx = index;
+ CDEBUG(D_OTHER, "new recovery log "DOSTID":%x for index %u of catalog"
+ DOSTID"\n", POSTID(&loghandle->lgh_id.lgl_oi),
+ loghandle->lgh_id.lgl_ogen, rec->lid_hdr.lrh_index,
+ POSTID(&cathandle->lgh_id.lgl_oi));
+
+ loghandle->lgh_hdr->llh_cat_idx = rec->lid_hdr.lrh_index;
RETURN(0);
out_destroy:
llog_destroy(env, loghandle);
*
* Assumes caller has already pushed us into the kernel context and is locking.
* We return a lock on the handle to ensure nobody yanks it from us.
+ *
+ * This takes extra reference on llog_handle via llog_handle_get() and require
+ * this reference to be put by caller using llog_handle_put()
*/
int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
struct llog_handle **res, struct llog_logid *logid)
{
struct llog_handle *loghandle;
+ enum llog_flag fmt;
int rc = 0;
ENTRY;
if (cathandle == NULL)
RETURN(-EBADF);
- cfs_down_write(&cathandle->lgh_lock);
- cfs_list_for_each_entry(loghandle, &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
+ fmt = cathandle->lgh_hdr->llh_flags & LLOG_F_EXT_MASK;
+ down_write(&cathandle->lgh_lock);
+ list_for_each_entry(loghandle, &cathandle->u.chd.chd_head,
+ u.phd.phd_entry) {
struct llog_logid *cgl = &loghandle->lgh_id;
- if (cgl->lgl_oid == logid->lgl_oid) {
+ if (ostid_id(&cgl->lgl_oi) == ostid_id(&logid->lgl_oi) &&
+ ostid_seq(&cgl->lgl_oi) == ostid_seq(&logid->lgl_oi)) {
if (cgl->lgl_ogen != logid->lgl_ogen) {
- CERROR("%s: log "LPX64" generation %x != %x\n",
+ CERROR("%s: log "DOSTID" generation %x != %x\n",
loghandle->lgh_ctxt->loc_obd->obd_name,
- logid->lgl_oid, cgl->lgl_ogen,
+ POSTID(&logid->lgl_oi), cgl->lgl_ogen,
logid->lgl_ogen);
continue;
}
loghandle->u.phd.phd_cat_handle = cathandle;
- cfs_up_write(&cathandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
GOTO(out, rc = 0);
}
}
- cfs_up_write(&cathandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
rc = llog_open(env, cathandle->lgh_ctxt, &loghandle, logid, NULL,
LLOG_OPEN_EXISTS);
if (rc < 0) {
- CERROR("%s: error opening log id "LPX64":%x: rc = %d\n",
+ CERROR("%s: error opening log id "DOSTID":%x: rc = %d\n",
cathandle->lgh_ctxt->loc_obd->obd_name,
- logid->lgl_oid, logid->lgl_ogen, rc);
- GOTO(out, rc);
+ POSTID(&logid->lgl_oi), logid->lgl_ogen, rc);
+ RETURN(rc);
}
- rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, NULL);
+ rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN | fmt, NULL);
if (rc < 0) {
llog_close(env, loghandle);
- GOTO(out, rc);
+ loghandle = NULL;
+ RETURN(rc);
}
- cfs_down_write(&cathandle->lgh_lock);
- cfs_list_add(&loghandle->u.phd.phd_entry, &cathandle->u.chd.chd_head);
- cfs_up_write(&cathandle->lgh_lock);
+ down_write(&cathandle->lgh_lock);
+ list_add_tail(&loghandle->u.phd.phd_entry, &cathandle->u.chd.chd_head);
+ up_write(&cathandle->lgh_lock);
loghandle->u.phd.phd_cat_handle = cathandle;
loghandle->u.phd.phd_cookie.lgc_lgl = cathandle->lgh_id;
loghandle->lgh_hdr->llh_cat_idx;
EXIT;
out:
+ llog_handle_get(loghandle);
*res = loghandle;
- return rc;
+ return 0;
}
int llog_cat_close(const struct lu_env *env, struct llog_handle *cathandle)
ENTRY;
- cfs_list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
+ list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
+ u.phd.phd_entry) {
struct llog_log_hdr *llh = loghandle->lgh_hdr;
int index;
/* unlink open-not-created llogs */
- cfs_list_del_init(&loghandle->u.phd.phd_entry);
+ list_del_init(&loghandle->u.phd.phd_entry);
llh = loghandle->lgh_hdr;
if (loghandle->lgh_obj != NULL && llh != NULL &&
(llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
rc);
index = loghandle->u.phd.phd_cookie.lgc_index;
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(env, cathandle, index);
- if (rc == 0)
- CDEBUG(D_RPCTRACE,
- "cancel plain log at index %u of "
- "catalog "LPX64"\n",
- index, cathandle->lgh_id.lgl_oid);
+ llog_cat_cleanup(env, cathandle, NULL, index);
}
llog_close(env, loghandle);
}
struct llog_handle *loghandle = NULL;
ENTRY;
- cfs_down_read_nested(&cathandle->lgh_lock, LLOGH_CAT);
+ down_read_nested(&cathandle->lgh_lock, LLOGH_CAT);
loghandle = cathandle->u.chd.chd_current_log;
if (loghandle) {
struct llog_log_hdr *llh;
- cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
+ down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
llh = loghandle->lgh_hdr;
if (llh == NULL ||
loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
- cfs_up_read(&cathandle->lgh_lock);
+ up_read(&cathandle->lgh_lock);
RETURN(loghandle);
} else {
- cfs_up_write(&loghandle->lgh_lock);
+ up_write(&loghandle->lgh_lock);
}
}
- cfs_up_read(&cathandle->lgh_lock);
+ up_read(&cathandle->lgh_lock);
/* time to use next log */
/* first, we have to make sure the state hasn't changed */
- cfs_down_write_nested(&cathandle->lgh_lock, LLOGH_CAT);
+ down_write_nested(&cathandle->lgh_lock, LLOGH_CAT);
loghandle = cathandle->u.chd.chd_current_log;
if (loghandle) {
struct llog_log_hdr *llh;
- cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
+ down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
llh = loghandle->lgh_hdr;
LASSERT(llh);
if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
- cfs_up_write(&cathandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
RETURN(loghandle);
} else {
- cfs_up_write(&loghandle->lgh_lock);
+ up_write(&loghandle->lgh_lock);
}
}
loghandle = cathandle->u.chd.chd_next_log;
cathandle->u.chd.chd_current_log = loghandle;
cathandle->u.chd.chd_next_log = NULL;
- cfs_down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
- cfs_up_write(&cathandle->lgh_lock);
+ down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
+ up_write(&cathandle->lgh_lock);
LASSERT(loghandle);
RETURN(loghandle);
}
*/
int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle,
struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
- void *buf, struct thandle *th)
+ struct thandle *th)
{
struct llog_handle *loghandle;
int rc;
if (!llog_exist(loghandle)) {
rc = llog_cat_new_log(env, cathandle, loghandle, th);
if (rc < 0) {
- cfs_up_write(&loghandle->lgh_lock);
+ up_write(&loghandle->lgh_lock);
RETURN(rc);
}
}
/* now let's try to add the record */
- rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf, -1, th);
- if (rc < 0)
- CERROR("llog_write_rec %d: lh=%p\n", rc, loghandle);
- cfs_up_write(&loghandle->lgh_lock);
+ rc = llog_write_rec(env, loghandle, rec, reccookie, LLOG_NEXT_IDX, th);
+ if (rc < 0)
+ CDEBUG_LIMIT(rc == -ENOSPC ? D_HA : D_ERROR,
+ "llog_write_rec %d: lh=%p\n", rc, loghandle);
+ up_write(&loghandle->lgh_lock);
if (rc == -ENOSPC) {
/* try to use next log */
loghandle = llog_cat_current_log(cathandle, th);
if (!llog_exist(loghandle)) {
rc = llog_cat_new_log(env, cathandle, loghandle, th);
if (rc < 0) {
- cfs_up_write(&loghandle->lgh_lock);
+ up_write(&loghandle->lgh_lock);
RETURN(rc);
}
}
/* now let's try to add the record */
- rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf,
- -1, th);
+ rc = llog_write_rec(env, loghandle, rec, reccookie,
+ LLOG_NEXT_IDX, th);
if (rc < 0)
CERROR("llog_write_rec %d: lh=%p\n", rc, loghandle);
- cfs_up_write(&loghandle->lgh_lock);
+ up_write(&loghandle->lgh_lock);
}
RETURN(rc);
struct llog_handle *cathandle,
struct llog_rec_hdr *rec, struct thandle *th)
{
+ struct llog_thread_info *lgi = llog_info(env);
+ struct llog_logid_rec *lirec = &lgi->lgi_logid;
struct llog_handle *loghandle, *next;
int rc = 0;
if (cathandle->u.chd.chd_current_log == NULL) {
/* declare new plain llog */
- cfs_down_write(&cathandle->lgh_lock);
+ down_write(&cathandle->lgh_lock);
if (cathandle->u.chd.chd_current_log == NULL) {
rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
NULL, NULL, LLOG_OPEN_NEW);
if (rc == 0) {
cathandle->u.chd.chd_current_log = loghandle;
- cfs_list_add_tail(&loghandle->u.phd.phd_entry,
- &cathandle->u.chd.chd_head);
+ list_add_tail(&loghandle->u.phd.phd_entry,
+ &cathandle->u.chd.chd_head);
}
}
- cfs_up_write(&cathandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
} else if (cathandle->u.chd.chd_next_log == NULL) {
/* declare next plain llog */
- cfs_down_write(&cathandle->lgh_lock);
+ down_write(&cathandle->lgh_lock);
if (cathandle->u.chd.chd_next_log == NULL) {
rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
NULL, NULL, LLOG_OPEN_NEW);
if (rc == 0) {
cathandle->u.chd.chd_next_log = loghandle;
- cfs_list_add_tail(&loghandle->u.phd.phd_entry,
- &cathandle->u.chd.chd_head);
+ list_add_tail(&loghandle->u.phd.phd_entry,
+ &cathandle->u.chd.chd_head);
}
}
- cfs_up_write(&cathandle->lgh_lock);
+ up_write(&cathandle->lgh_lock);
}
if (rc)
GOTO(out, rc);
+ lirec->lid_hdr.lrh_len = sizeof(*lirec);
+
if (!llog_exist(cathandle->u.chd.chd_current_log)) {
rc = llog_declare_create(env, cathandle->u.chd.chd_current_log,
th);
if (rc)
GOTO(out, rc);
- llog_declare_write_rec(env, cathandle, NULL, -1, th);
+ llog_declare_write_rec(env, cathandle, &lirec->lid_hdr, -1, th);
}
/* declare records in the llogs */
rc = llog_declare_write_rec(env, cathandle->u.chd.chd_current_log,
if (next) {
if (!llog_exist(next)) {
rc = llog_declare_create(env, next, th);
- llog_declare_write_rec(env, cathandle, NULL, -1, th);
+ llog_declare_write_rec(env, cathandle, &lirec->lid_hdr,
+ -1, th);
}
- llog_declare_write_rec(env, next, rec, -1, th);
+ /* XXX: we hope for declarations made for existing llog
+ * this might be not correct with some backends
+ * where declarations are expected against specific
+ * object like ZFS with full debugging enabled */
+ /*llog_declare_write_rec(env, next, rec, -1, th);*/
}
out:
RETURN(rc);
EXPORT_SYMBOL(llog_cat_declare_add_rec);
int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle,
- struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
- void *buf)
+ struct llog_rec_hdr *rec, struct llog_cookie *reccookie)
{
struct llog_ctxt *ctxt;
struct dt_device *dt;
LASSERT(ctxt);
LASSERT(ctxt->loc_exp);
- if (cathandle->lgh_obj != NULL) {
- dt = ctxt->loc_exp->exp_obd->obd_lvfs_ctxt.dt;
- LASSERT(dt);
+ LASSERT(cathandle->lgh_obj != NULL);
+ dt = lu2dt_dev(cathandle->lgh_obj->do_lu.lo_dev);
- th = dt_trans_create(env, dt);
- if (IS_ERR(th))
- RETURN(PTR_ERR(th));
+ th = dt_trans_create(env, dt);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
- rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
- if (rc)
- GOTO(out_trans, rc);
+ rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
+ if (rc)
+ GOTO(out_trans, rc);
- rc = dt_trans_start_local(env, dt, th);
- if (rc)
- GOTO(out_trans, rc);
- rc = llog_cat_add_rec(env, cathandle, rec, reccookie, buf, th);
+ rc = dt_trans_start_local(env, dt, th);
+ if (rc)
+ GOTO(out_trans, rc);
+ rc = llog_cat_add_rec(env, cathandle, rec, reccookie, th);
out_trans:
- dt_trans_stop(env, dt, th);
- } else { /* lvfs compat code */
- LASSERT(cathandle->lgh_file != NULL);
- rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
- if (rc == 0)
- rc = llog_cat_add_rec(env, cathandle, rec, reccookie,
- buf, th);
- }
+ dt_trans_stop(env, dt, th);
RETURN(rc);
}
EXPORT_SYMBOL(llog_cat_add);
rc = llog_cat_id2handle(env, cathandle, &loghandle, lgl);
if (rc) {
- CERROR("Cannot find log "LPX64"\n", lgl->lgl_oid);
- break;
+ CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
+ cathandle->lgh_ctxt->loc_obd->obd_name,
+ POSTID(&lgl->lgl_oi), rc);
+ failed++;
+ continue;
}
lrc = llog_cancel_rec(env, loghandle, cookies->lgc_index);
- if (lrc == 1) { /* log has been destroyed */
+ if (lrc == LLOG_DEL_PLAIN) { /* log has been destroyed */
index = loghandle->u.phd.phd_cookie.lgc_index;
- cfs_down_write(&cathandle->lgh_lock);
- if (cathandle->u.chd.chd_current_log == loghandle)
- cathandle->u.chd.chd_current_log = NULL;
- cfs_up_write(&cathandle->lgh_lock);
- llog_close(env, loghandle);
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- lrc = llog_cancel_rec(env, cathandle, index);
- if (lrc == 0)
- CDEBUG(D_RPCTRACE, "cancel plain log at index"
- " %u of catalog "LPX64"\n",
- index, cathandle->lgh_id.lgl_oid);
+ rc = llog_cat_cleanup(env, cathandle, loghandle,
+ index);
} else if (lrc == -ENOENT) {
if (rc == 0) /* ENOENT shouldn't rewrite any error */
rc = lrc;
failed++;
rc = lrc;
}
+ llog_handle_put(loghandle);
}
if (rc)
CERROR("%s: fail to cancel %d of %d llog-records: rc = %d\n",
}
EXPORT_SYMBOL(llog_cat_cancel_records);
-int llog_cat_process_cb(const struct lu_env *env, struct llog_handle *cat_llh,
- struct llog_rec_hdr *rec, void *data)
+static int llog_cat_process_cb(const struct lu_env *env,
+ struct llog_handle *cat_llh,
+ struct llog_rec_hdr *rec, void *data)
{
struct llog_process_data *d = data;
struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
struct llog_handle *llh;
+ struct llog_log_hdr *hdr;
int rc;
ENTRY;
CERROR("invalid record in catalog\n");
RETURN(-EINVAL);
}
- CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- rec->lrh_index, cat_llh->lgh_id.lgl_oid);
+ CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
+ DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
+ rec->lrh_index, POSTID(&cat_llh->lgh_id.lgl_oi));
rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
- if (rc) {
- CERROR("Cannot find handle for log "LPX64"\n",
- lir->lid_id.lgl_oid);
- RETURN(rc);
- }
+ if (rc) {
+ CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
+ cat_llh->lgh_ctxt->loc_obd->obd_name,
+ POSTID(&lir->lid_id.lgl_oi), rc);
+ if (rc == -ENOENT || rc == -ESTALE) {
+ /* After a server crash, a stub of index
+ * record in catlog could be kept, because
+ * plain log destroy + catlog index record
+ * deletion are not atomic. So we end up with
+ * an index but no actual record. Destroy the
+ * index and move on. */
+ rc = llog_cat_cleanup(env, cat_llh, NULL,
+ rec->lrh_index);
+ }
- if (rec->lrh_index < d->lpd_startcat)
- /* Skip processing of the logs until startcat */
- RETURN(0);
+ RETURN(rc);
+ }
- if (d->lpd_startidx > 0) {
+ /* clean old empty llogs, do not consider current llog in use */
+ /* ignore remote (lgh_obj=NULL) llogs */
+ hdr = llh->lgh_hdr;
+ if ((hdr->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
+ hdr->llh_count == 1 && cat_llh->lgh_obj != NULL &&
+ llh != cat_llh->u.chd.chd_current_log) {
+ rc = llog_destroy(env, llh);
+ if (rc)
+ CERROR("%s: fail to destroy empty log: rc = %d\n",
+ llh->lgh_ctxt->loc_obd->obd_name, rc);
+ GOTO(out, rc = LLOG_DEL_PLAIN);
+ }
+
+ if (rec->lrh_index < d->lpd_startcat) {
+ /* Skip processing of the logs until startcat */
+ rc = 0;
+ } else if (d->lpd_startidx > 0) {
struct llog_process_cat_data cd;
cd.lpcd_first_idx = d->lpd_startidx;
cd.lpcd_last_idx = 0;
rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
&cd, false);
- /* Continue processing the next log from idx 0 */
- d->lpd_startidx = 0;
- } else {
+ /* Continue processing the next log from idx 0 */
+ d->lpd_startidx = 0;
+ } else {
rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
NULL, false);
- }
+ }
- RETURN(rc);
+out:
+ /* The empty plain log was destroyed while processing */
+ if (rc == LLOG_DEL_PLAIN)
+ rc = llog_cat_cleanup(env, cat_llh, llh,
+ llh->u.phd.phd_cookie.lgc_index);
+ llog_handle_put(llh);
+
+ RETURN(rc);
}
int llog_cat_process_or_fork(const struct lu_env *env,
if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
struct llog_process_cat_data cd;
- CWARN("catlog "LPX64" crosses index zero\n",
- cat_llh->lgh_id.lgl_oid);
+ CWARN("catlog "DOSTID" crosses index zero\n",
+ POSTID(&cat_llh->lgh_id.lgl_oi));
cd.lpcd_first_idx = llh->llh_cat_idx;
cd.lpcd_last_idx = 0;
rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
&d, &cd, fork);
- if (rc != 0)
- RETURN(rc);
+ if (rc != 0)
+ RETURN(rc);
- cd.lpcd_first_idx = 0;
- cd.lpcd_last_idx = cat_llh->lgh_last_idx;
+ cd.lpcd_first_idx = 0;
+ cd.lpcd_last_idx = cat_llh->lgh_last_idx;
rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
&d, &cd, fork);
} else {
}
EXPORT_SYMBOL(llog_cat_process);
-#ifdef __KERNEL__
-int llog_cat_process_thread(void *data)
+static int llog_cat_reverse_process_cb(const struct lu_env *env,
+ struct llog_handle *cat_llh,
+ struct llog_rec_hdr *rec, void *data)
{
- struct llog_process_cat_args *args = data;
- struct llog_ctxt *ctxt = args->lpca_ctxt;
- struct llog_handle *llh = NULL;
- llog_cb_t cb = args->lpca_cb;
- struct llog_thread_info *lgi;
- struct lu_env env;
- int rc;
- ENTRY;
-
- cfs_daemonize_ctxt("ll_log_process");
-
- rc = lu_env_init(&env, LCT_LOCAL);
- if (rc)
- GOTO(out, rc);
- lgi = llog_info(&env);
- LASSERT(lgi);
+ struct llog_process_data *d = data;
+ struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
+ struct llog_handle *llh;
+ struct llog_log_hdr *hdr;
+ int rc;
- lgi->lgi_logid = *(struct llog_logid *)(args->lpca_arg);
- rc = llog_open(&env, ctxt, &llh, &lgi->lgi_logid, NULL,
- LLOG_OPEN_EXISTS);
- if (rc) {
- CERROR("%s: cannot open llog "LPX64":%x: rc = %d\n",
- ctxt->loc_obd->obd_name, lgi->lgi_logid.lgl_oid,
- lgi->lgi_logid.lgl_ogen, rc);
- GOTO(out_env, rc);
+ if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
+ CERROR("invalid record in catalog\n");
+ RETURN(-EINVAL);
}
- rc = llog_init_handle(&env, llh, LLOG_F_IS_CAT, NULL);
+ CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
+ DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
+ le32_to_cpu(rec->lrh_index), POSTID(&cat_llh->lgh_id.lgl_oi));
+
+ rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
if (rc) {
- CERROR("%s: llog_init_handle failed: rc = %d\n",
- llh->lgh_ctxt->loc_obd->obd_name, rc);
- GOTO(release_llh, rc);
+ CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
+ cat_llh->lgh_ctxt->loc_obd->obd_name,
+ POSTID(&lir->lid_id.lgl_oi), rc);
+ if (rc == -ENOENT || rc == -ESTALE) {
+ /* After a server crash, a stub of index
+ * record in catlog could be kept, because
+ * plain log destroy + catlog index record
+ * deletion are not atomic. So we end up with
+ * an index but no actual record. Destroy the
+ * index and move on. */
+ rc = llog_cat_cleanup(env, cat_llh, NULL,
+ rec->lrh_index);
+ }
+
+ RETURN(rc);
}
- if (cb) {
- rc = llog_cat_process(&env, llh, cb, NULL, 0, 0);
- if (rc != LLOG_PROC_BREAK && rc != 0)
- CERROR("%s: llog_cat_process() failed: rc = %d\n",
+ /* clean old empty llogs, do not consider current llog in use */
+ hdr = llh->lgh_hdr;
+ if ((hdr->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
+ hdr->llh_count == 1 &&
+ llh != cat_llh->u.chd.chd_current_log) {
+ rc = llog_destroy(env, llh);
+ if (rc)
+ CERROR("%s: fail to destroy empty log: rc = %d\n",
llh->lgh_ctxt->loc_obd->obd_name, rc);
- cb(&env, llh, NULL, NULL);
- } else {
- CWARN("No callback function for recovery\n");
+ GOTO(out, rc = LLOG_DEL_PLAIN);
}
- /*
- * Make sure that all cached data is sent.
- */
- llog_sync(ctxt, NULL, 0);
- GOTO(release_llh, rc);
-release_llh:
- rc = llog_cat_close(&env, llh);
- if (rc)
- CERROR("%s: llog_cat_close() failed: rc = %d\n",
- llh->lgh_ctxt->loc_obd->obd_name, rc);
-out_env:
- lu_env_fini(&env);
-out:
- llog_ctxt_put(ctxt);
- OBD_FREE_PTR(args);
- return rc;
-}
-EXPORT_SYMBOL(llog_cat_process_thread);
-#endif
-
-static int llog_cat_reverse_process_cb(const struct lu_env *env,
- struct llog_handle *cat_llh,
- struct llog_rec_hdr *rec, void *data)
-{
- struct llog_process_data *d = data;
- struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
- struct llog_handle *llh;
- int rc;
-
- if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
- CERROR("invalid record in catalog\n");
- RETURN(-EINVAL);
- }
- CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- le32_to_cpu(rec->lrh_index), cat_llh->lgh_id.lgl_oid);
+ rc = llog_reverse_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
- rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
- if (rc) {
- CERROR("Cannot find handle for log "LPX64"\n",
- lir->lid_id.lgl_oid);
- RETURN(rc);
- }
+out:
+ /* The empty plain was destroyed while processing */
+ if (rc == LLOG_DEL_PLAIN)
+ rc = llog_cat_cleanup(env, cat_llh, llh,
+ llh->u.phd.phd_cookie.lgc_index);
- rc = llog_reverse_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
- RETURN(rc);
+ llog_handle_put(llh);
+ RETURN(rc);
}
int llog_cat_reverse_process(const struct lu_env *env,
d.lpd_data = data;
d.lpd_cb = cb;
- if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
- CWARN("catalog "LPX64" crosses index zero\n",
- cat_llh->lgh_id.lgl_oid);
+ if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
+ CWARN("catalog "DOSTID" crosses index zero\n",
+ POSTID(&cat_llh->lgh_id.lgl_oi));
cd.lpcd_first_idx = 0;
cd.lpcd_last_idx = cat_llh->lgh_last_idx;
rc = llog_reverse_process(env, cat_llh,
llog_cat_reverse_process_cb,
&d, &cd);
- if (rc != 0)
- RETURN(rc);
+ if (rc != 0)
+ RETURN(rc);
- cd.lpcd_first_idx = le32_to_cpu(llh->llh_cat_idx);
- cd.lpcd_last_idx = 0;
+ cd.lpcd_first_idx = le32_to_cpu(llh->llh_cat_idx);
+ cd.lpcd_last_idx = 0;
rc = llog_reverse_process(env, cat_llh,
llog_cat_reverse_process_cb,
&d, &cd);
}
EXPORT_SYMBOL(llog_cat_reverse_process);
-int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
+static int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
{
struct llog_log_hdr *llh = cathandle->lgh_hdr;
int i, bitmap_size, idx;
}
}
out:
- CDEBUG(D_RPCTRACE, "set catlog "LPX64" first idx %u\n",
- cathandle->lgh_id.lgl_oid, llh->llh_cat_idx);
- }
+ CDEBUG(D_RPCTRACE, "set catlog "DOSTID" first idx %u\n",
+ POSTID(&cathandle->lgh_id.lgl_oi), llh->llh_cat_idx);
+ }
- RETURN(0);
+ RETURN(0);
}
-int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
+/* Cleanup deleted plain llog traces from catalog */
+int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
+ struct llog_handle *loghandle, int index)
+{
+ int rc;
+
+ LASSERT(index);
+ if (loghandle != NULL) {
+ /* remove destroyed llog from catalog list and
+ * chd_current_log variable */
+ down_write(&cathandle->lgh_lock);
+ if (cathandle->u.chd.chd_current_log == loghandle)
+ cathandle->u.chd.chd_current_log = NULL;
+ list_del_init(&loghandle->u.phd.phd_entry);
+ up_write(&cathandle->lgh_lock);
+ LASSERT(index == loghandle->u.phd.phd_cookie.lgc_index);
+ /* llog was opened and keep in a list, close it now */
+ llog_close(env, loghandle);
+ }
+ /* remove plain llog entry from catalog by index */
+ llog_cat_set_first_idx(cathandle, index);
+ rc = llog_cancel_rec(env, cathandle, index);
+ if (rc == 0)
+ CDEBUG(D_HA, "cancel plain log at index"
+ " %u of catalog "DOSTID"\n",
+ index, POSTID(&cathandle->lgh_id.lgl_oi));
+ return rc;
+}
+
+int cat_cancel_cb(const struct lu_env *env,
+ struct llog_handle *cathandle,
struct llog_rec_hdr *rec, void *data)
{
struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
struct llog_handle *loghandle;
struct llog_log_hdr *llh;
- int rc, index;
+ int rc;
ENTRY;
if (rec->lrh_type != LLOG_LOGID_MAGIC) {
- CERROR("%s: invalid record in catalog\n",
- loghandle->lgh_ctxt->loc_obd->obd_name);
+ CERROR("invalid record in catalog\n");
RETURN(-EINVAL);
}
- CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen,
- rec->lrh_index, cathandle->lgh_id.lgl_oid);
+
+ CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
+ DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
+ rec->lrh_index, POSTID(&cathandle->lgh_id.lgl_oi));
rc = llog_cat_id2handle(env, cathandle, &loghandle, &lir->lid_id);
if (rc) {
- CERROR("%s: cannot find handle for llog "LPX64"\n",
- loghandle->lgh_ctxt->loc_obd->obd_name,
- lir->lid_id.lgl_oid);
- if (rc == -ENOENT) {
- index = rec->lrh_index;
- goto cat_cleanup;
+ CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
+ cathandle->lgh_ctxt->loc_obd->obd_name,
+ POSTID(&lir->lid_id.lgl_oi), rc);
+ if (rc == -ENOENT || rc == -ESTALE) {
+ /* remove index from catalog */
+ llog_cat_cleanup(env, cathandle, NULL, rec->lrh_index);
}
RETURN(rc);
}
CERROR("%s: fail to destroy empty log: rc = %d\n",
loghandle->lgh_ctxt->loc_obd->obd_name, rc);
- index = loghandle->u.phd.phd_cookie.lgc_index;
- llog_close(env, loghandle);
-
-cat_cleanup:
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(env, cathandle, index);
- if (rc == 0)
- CDEBUG(D_HA,
- "cancel log "LPX64":%x at index %u of catalog "
- LPX64"\n", lir->lid_id.lgl_oid,
- lir->lid_id.lgl_ogen, rec->lrh_index,
- cathandle->lgh_id.lgl_oid);
+ llog_cat_cleanup(env, cathandle, loghandle,
+ loghandle->u.phd.phd_cookie.lgc_index);
}
+ llog_handle_put(loghandle);
RETURN(rc);
}
+EXPORT_SYMBOL(cat_cancel_cb);
/* helper to initialize catalog llog and process it to cancel */
int llog_cat_init_and_process(const struct lu_env *env,
if (rc)
RETURN(rc);
- rc = llog_process(env, llh, cat_cancel_cb, NULL, NULL);
- if (rc)
- CERROR("%s: llog_process() with cat_cancel_cb failed: rc = "
- "%d\n", llh->lgh_ctxt->loc_obd->obd_name, rc);
RETURN(0);
}
EXPORT_SYMBOL(llog_cat_init_and_process);
-
git://git.whamcloud.com / fs / lustre-release.git / blobdiff